/* testMOD() */
/* Rip_MOD() */

/*
   this funtion will handle any MOD-alike formats
   meaning whatever the number of channels. This
   number is the arg in fact.
 */


#include "globals.h"



short testMOD(int nbrchannels)
{
    /* test 1 */
    if (PW_i < 1080)
    {
        /*printf ( "#1 (PW_i:%ld)\n" , PW_i );*/
        return BAD;
    }

    /* test 2 */
    PW_Start_Address = PW_i - 1080;
    PW_WholeSampleSize = 0;
    for (PW_k = 0; PW_k < 31; PW_k++)
    {
        /* size */
        PW_j = (((in_data[PW_Start_Address + 42 + PW_k * 30] * 256) + in_data[PW_Start_Address + 43 + PW_k * 30]) * 2);
        /* loop start */
        PW_m = (((in_data[PW_Start_Address + 46 + PW_k * 30] * 256) + in_data[PW_Start_Address + 47 + PW_k * 30]) * 2);
        /* loop size */
        PW_n = (((in_data[PW_Start_Address + 48 + PW_k * 30] * 256) + in_data[PW_Start_Address + 49 + PW_k * 30]) * 2);

        if (test_smps(PW_j * 2, PW_m, PW_n, in_data[PW_Start_Address + 45 + 30 * PW_k], in_data[PW_Start_Address + 44 + 30 * PW_k]) == BAD)
        {
            /*printf ( "start : %ld\n", PW_Start_Address );*/
            return BAD;
        }

        PW_WholeSampleSize += PW_j;
    }

    /* test #4  pattern list size */
    PW_l = in_data[PW_Start_Address + 950];
    if ((PW_l > 127) || (PW_l == 0))
    {
        /*printf ( "#4,0 (Start:%ld)\n" , PW_Start_Address );*/
        return BAD;
    }
    /* PW_l holds the size of the pattern list */
    PW_k = 0;
    for (PW_j = 0; PW_j < 128; PW_j++)
    {
        if (in_data[PW_Start_Address + 952 + PW_j] > PW_k)
            PW_k = in_data[PW_Start_Address + 952 + PW_j];
        if (in_data[PW_Start_Address + 952 + PW_j] > 127)
        {
            /*printf ( "#4,1 (Start:%ld)\n" , PW_Start_Address );*/
            return BAD;
        }
    }
    /* PW_k holds the highest pattern number */
    /* test last patterns of the pattern list = 0 ? */
    PW_j += 2; /* found some obscure ptk :( */
    while (PW_j < 128)
    {
        if (in_data[PW_Start_Address + 952 + PW_j] > 0x7f)
        {
            /*printf ( "#4,2 (Start:%ld) (PW_j:%ld) (at:%ld)\n" , PW_Start_Address,PW_j ,PW_Start_Address+952+PW_j );*/
            return BAD;
        }
        PW_j += 1;
    }
    /* PW_k is the number of pattern in the file (-1) */
    PW_k += 1;


    /* test #5 pattern data ... */
    if (((PW_k * 256 * nbrchannels) + 1084 + PW_Start_Address) > PW_in_size)
    {
        /*printf ( "#5,0 (Start:%ld)(1patsize:%ld)\n" , PW_Start_Address, 256*nbrchannels);*/
        return BAD;
    }
    for (PW_j = 0; PW_j < (PW_k * 256); PW_j++)
    {
        /* sample > 1f   or   pitch > 358 ? */
        if (in_data[PW_Start_Address + 1084 + PW_j * nbrchannels] > 0x13)
        {
            /*printf ( "#5.1 (Start:%ld)(sample value:%x)(Where:%lx)\n" , PW_Start_Address,in_data[PW_Start_Address+1084+PW_j*nbrchannels],PW_Start_Address+1084+PW_j*nbrchannels);*/
            return BAD;
        }
        PW_l = ((in_data[PW_Start_Address + 1084 + PW_j * nbrchannels] & 0x0f) * 256) + in_data[PW_Start_Address + 1085 + PW_j * nbrchannels];
        if ((PW_l > 0) && (PW_l < 0x1C))
        {
            /*printf ( "#5,2 (Start:%ld)(PW_l:%lx)(Where:%lx)\n" , PW_Start_Address,PW_l,PW_Start_Address+1084+PW_j*nbrchannels );*/
            return BAD;
        }
    }

    return GOOD;
}



void Rip_MOD(int nbrchannels)
{
    char whatever[64];
    BZERO(whatever, 64);
    /* PW_k is still the nbr of pattern */
    /* PW_WholeSampleSize is still the whole sample size */

    OutputSize = PW_WholeSampleSize + (PW_k * 256 * nbrchannels) + 1084;

    CONVERT = BAD;
    sprintf(whatever, "Pro|Star|whatever tracker %d channels module", nbrchannels);
    Save_Rip(whatever, Protracker);

    if (Save_Status == GOOD)
        PW_i += 1084;
}